General

  • Target

    3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc.exe

  • Size

    4.2MB

  • Sample

    241125-cr7yzssrbs

  • MD5

    6c2e06aafb4acb8c62410c0e7e31bc49

  • SHA1

    834df800ddb24027200ee7bc3913601b7233897f

  • SHA256

    3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc

  • SHA512

    ae7a2335cfc39fffc503e55a3f903f3cdc5b63ed960b49128607ee7247316345d74497afa7c40847499625f90556523d2c3219e246fecf3b8e631cac715b5684

  • SSDEEP

    98304:f5heVsXlKECN43oYmo9fXuR5DxAk0SA4JmAwONNKmR:f3eVsVKx+3tmq/w5Dak0SA4JRnKmR

Malware Config

Targets

    • Target

      3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc.exe

    • Size

      4.2MB

    • MD5

      6c2e06aafb4acb8c62410c0e7e31bc49

    • SHA1

      834df800ddb24027200ee7bc3913601b7233897f

    • SHA256

      3943d3d4ea41f1da39b9a5af2b0770c62e81779d2f20852c21e1608c5e6bfdfc

    • SHA512

      ae7a2335cfc39fffc503e55a3f903f3cdc5b63ed960b49128607ee7247316345d74497afa7c40847499625f90556523d2c3219e246fecf3b8e631cac715b5684

    • SSDEEP

      98304:f5heVsXlKECN43oYmo9fXuR5DxAk0SA4JmAwONNKmR:f3eVsVKx+3tmq/w5Dak0SA4JRnKmR

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks